目的 分析MRI在评估孕妇分娩 后早期盆底功能障碍中的作用。方法 选 取我院2014年9月至2016年5月期间分娩后 出现早期盆底功能障碍的产妇38例为观 察组，另选同期来我院分娩后盆底功能 正常的30例产妇为对照组，两组均接受 MRI检查，分析两组MRI检查横断位、矢状 位及冠状位数据及图像结果。结果 观察 组动、静态MRI检查横断位髂骨尾骨肌、 耻骨尾骨肌、耻骨直肠肌面积均显著小 于对照组(P＜0.05)，动、静态横断位肛 提肌裂孔宽度、动、静态矢状位LH线、M 线长度均显著大于对照组(P＜0.05)，且 动、静态冠状位MRI示肛提肌角明显减小 (P＜0.05)。结论 早期盆底功能障碍患者 MRI所成图像中盆底解剖结构和正常女性 差异明显，动、静态MRI扫描能够反映孕 妇分娩后早期盆底功能障碍的盆底功能及 形态变化，有助于产后盆底功能障碍程度 的评估及诊断。

Objective To analyze the effect of MRI in the estimation of pelvic floor dysfunction in early stage of pregnant woman after delivery. Methods 38 pregnant woman with pelvic floor dysfunction in early stage after delivery in our hospital from May 2014 to May 2016 were selected as the observation group, 30 pregnant woman with normal pelvic floor function in our hospital in the same period were selected as the control group, MRI inspection travers, sagittal position, coronal scan data and image results in the two groups were analyzed. Results Dynamic, static MRI inspection travers iliococcygeal muscle, musculi pubococcygeus, musculi puporectalis area in the observation group were significantly less than the control group (P<0.05), dynamic, static travers widths of levator hiatus, dynamic, static sagittal position LH line, M line length were significantly greater than the control group (P<0.05), dynamic, static coronal scan MRI angle of anal sphincter were decreased significantly (P<0.05). Conclusion Anatomical structure of pelvic floor of patients with pelvic floor dysfunction in early stage in MRI image have significant difference from normal female, dynamic, static MRI scan can reflect pelvic floor function and change of form of pregnant woman with pelvic floor dysfunction in early stage after delivery, which helps to the estimation and diagnosis of degree of pelvic floor dysfunction after delivery.